基于DDR4的新型FLY-BY拓扑技术研究  

Research on Novel FLY-BY Topography Technology Based on DDR4

作　　者：郭丰睿 路静[1] 刘浩 武欣 GUO Fengrui;LU Jing;LIU Hao;WU Xin(Beijing Aerospace Automatic Control Institute,Beijing 100854,China)

机构地区：[1]北京航天自动控制研究所,北京100854

出　　处：《移动信息》2025年第2期208-210,共3页Mobile Information

摘　　要：随着信号处理领域向着高速率大带宽的趋势发展,控制器和负载之间互连链路反应出的串扰、畸变、振铃等信号完整性问题日益突出.文中基于高速缓存DDR4提出了一种将PCB作为信号载体的新型FLY-BY拓扑结构,有效弱化了多负载芯片非理想效应和传输链路阻抗突变,提高了信号接收双方的电平裕量,为更高速率、更高复杂度电路上的一驱多互连设计提供了有效手段.As the field of signal processing evolves towards high-speed and large bandwidth,signal integrity issues such as crosstalk,distortion,and ringing,manifested in the interconnection link between controllers and loads,are becoming increasingly prominent.This paper proposes a novel FLY-BY topology using PCB as a signal carrier based on DDR4,which effectively mitigates the non-ideal effects of multi-load chips and abrupt impedance changes in transmission links,increases the level margin of both signal transmitting and receiving ends,and provides an effective means for the design of Multi load interconnection on higher speed and higher complexity circuits.

关 键 词：信号完整性 FLY-BY 阻抗突变 

分 类 号：TM711[电气工程—电力系统及自动化]